Caption
Outside of the apex of Fallacia latelongitudinalis (SEM). This species is an example with finely porous conopea reaching nearly to the valve margin, almost completely covering the striae, and making the valve face appear unornamented in the light microscope. Fascicles of pores spread across each conopeum. A few areolae of the striae under the conopea are visible in the apical openings of the conopea. Scale bar = 1 µm.
